INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (separating components of materials in general B01D, B01J, B03, B07; apparatus fully provided for in a single other subclass, see the relevant subclass, e.g. B01L; measuring or testing processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q; investigation of foundation soil in situE02D 1/00; sensing humidity changes for compensating measurements of other variables or for compensating readings of instruments for variations in humidity, seeG01D or the relevant subclass for the variable measured; testing or determining the properties of structures G01M; measuring or investigating electric or magnetic properties of materials G01R; systems or methods in general, using reception or emission of radiowaves or other waves and based on propagation effects, e.g. Doppler effect, propagation time, direction of propagation, G01S; determining sensivity, graininess, or density of photographic materials G03C 5/02; testing component parts of nuclear reactors G21C 17/00; {controlling or regulating non-electric variables G05D; measuring degree of ionisation of ionised gases, i.e. plasma H05H 1/0006; testing electrographic developer properties G03G 15/0848}) [2018-08]

NOTES

In this subclass, the following terms are used with the meanings indicated :

"investigating" means testing or determining;

"materials" includes solid, liquid or gaseous media, e.g. the atmosphere.

{Three-dimensional imaging, imaging in different image planes, e.g. under different angles or at different depths, e.g. by a relative motion of sample and detector, for instance by tomography} [2013-01]

Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light (G01N 3/00-G01N 19/00 take precedence) [2018-02]

NOTE

This group does not cover the investigation of spectral properties of light per se, or measurements of the properties of materials where spectral properties of light are sensed and primary emphasis is placed on creating, detecting or analysing the spectrum providing that the properties of the materials to be investigated are of minor importance. Those subjects are covered by group G01J 3/00.

G01N 21/01

.

Arrangements or apparatus for facilitating the optical investigation [2013-01]

G01N 2021/0106

. .

{General arrangement of respective parts} [2013-01]

G01N 2021/0112

. . .

{Apparatus in one mechanical, optical or electronic block} [2013-01]

G01N 2021/0118

. . .

{Apparatus with remote processing} [2013-01]

G01N 2021/0125

. . . .

{with stored program or instructions} [2013-01]

G01N 2021/0131

. . . . .

{being externally stored} [2013-01]

G01N 2021/0137

. . . .

{with PC or the like} [2013-01]

G01N 2021/0143

. . . .

{with internal and external computer} [2013-01]

G01N 2021/015

. . .

{Apparatus with interchangeable optical heads or interchangeable block of optics and detector} [2013-01]

Preventing contamination of the components of the optical system or obstruction of the light path [2013-01]

G01N 2021/151

. . .

{Gas blown} [2013-01]

G01N 2021/152

. . .

{Scraping; Brushing; Moving band} [2013-01]

G01N 2021/154

. . .

{Ultrasonic cleaning} [2013-01]

G01N 2021/155

. . .

{Monitoring cleanness of window, lens, or other parts} [2013-01]

G01N 2021/157

. . . .

{Monitoring by optical means} [2013-01]

G01N 2021/158

. . .

{Eliminating condensation} [2013-01]

G01N 21/17

.

Systems in which incident light is modified in accordance with the properties of the material investigated (where the material investigated is optically excited causing a change in wavelength of the incident light G01N 21/63) [2013-01]

Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated (systems in which material is burnt in a flame or plasma G01N 21/72, G01N 21/73) [2013-01]

Group G01N 23/06 is impacted by reclassification into group G01N 23/083. All groups listed in this Warning should be considered in order to perform a complete search.

G01N 23/083

. . .

the radiation being X-rays [2018-02]

WARNING

Group G01N 23/083 is incomplete pending reclassification of documents from groups G01N 23/06 and G01N 23/10 – G01N 23/185. All groups listed in this Warning should be considered in order to perform a complete search.

Group G01N 23/185 is impacted by reclassification into groups G01N 23/083, and G01N 23/16. All groups listed in this Warning should be considered in order to perform a complete search.

G01N 23/20

.

by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials [2018-02]

Combination of two or more measurements, at least one measurement being that of secondary emission, e.g. combination of secondary electron [SE] measurement and back-scattered electron [BSE] measurement [2018-02]

G01N 23/2208

. . .

all measurements being of a secondary emission, e.g. combination of SE measurement and characteristic X-ray measurement [2018-02]

{Analysis of materials for the purpose of controlling industrial production systems} [2013-01]

G01N 24/087

. .

{Structure determination of a chemical compound, e.g. of a biomolecule such as a protein} [2016-11]

G01N 24/088

. .

{Assessment or manipulation of a chemical or biochemical reaction, e.g. verification whether a chemical reaction occurred or whether a ligand binds to a receptor in drug screening or assessing reaction kinetics} [2016-11]

Investigating or analyzing materials by the use of thermal means (G01N 3/00 - G01N 23/00 take precedence) [2016-05]

G01N 25/005

.

{by investigating specific heat} [2013-01]

G01N 25/02

.

by investigating changes of state or changes of phase; by investigating sintering {(investigating or analysing oils or hydrocarbon fluids by measuring cloud point or pour point G01N 33/2811)} [2013-01]

Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (G01N 3/00 - G01N 25/00 take precedence; measurement or testing electric or magnetic variables or of electric or magnetic properties of materials G01R) [2016-05]

by investigating electrochemical variables; by using electrolysis or electrophoresis (investigating resistance to corrosion G01N 17/00; investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography, G01N 30/00; immunoelectrophoresis G01N 33/561; electrochemical processes or apparatus in general B01J; standard cells H01M 6/28) [2013-01]

G01N 27/27

. .

Association of two or more measuring systems or cells, each measuring a different parameter, where the measurement results may be either used independently, the systems or cells being physically associated, or combined to produce a value for a further parameter {, e.g. electrochemical electrode arrays (gas sensor arrays G01N 33/0031)} [2016-08]

Polarography, i.e. measuring changes in current under a slowly-varying voltage [2013-01]

G01N 27/49

. . .

Systems involving the determination of the current at a single specific value, or small range of values, of applied voltage for producing selective measurement of one or more particular ionic species [2013-01]

{arrangements for supporting or marking or rejecting, e.g. machines (sorting individual articles or bulk material fit to be sorted piece-meal, controlled indirectly by devices which detect or measure some feature of the article or material to be sorted B07C 5/00)} [2013-01]

Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object (G01N 3/00 - G01N 27/00 take precedence; measuring or indicating of ultrasonic, sonic or infrasonic waves in general G01H; systems using the reflection or reradiation of acoustic waves, e.g. acoustic imaging, G01S 15/00; obtaining records by techniques analogous to photography using ultrasonic, sonic or infrasonic waves G03B 42/06; {medical diagnosis by ultrasounds A61B 8/00; generating or transmitting mechanical or acoustic waves B06B, G10K; seismic or acoustic prospecting or detecting G01V 1/00}) [2016-05]